Finding the Fourth Proportional to 49,361.60, 68,111.52 and 28,139.84

Step by Step Solution

1. Step 1: Write the proportion equation
   49,361.60 : 68,111.52 = 28,139.84 : x
2. Step 2: Convert to fraction form
   49,361.60/68,111.52 = 28,139.84/x
3. Step 3: Cross multiply
   49,361.60x = 68,111.52 × 28,139.84
4. Step 4: Simplify right side
   49,361.60x = 1,916,647,274.96
5. Step 5: Solve for x
   x = 1,916,647,274.96/49,361.60
6. Step 6: Final answer
   x = 38,828.71